<template>
    <div class="login_container">
        <div>
            <div class="login_box">
                <div class="avatar_box">
                    <img src="../assets/logo.png" alt="">
                </div>
                <el-form :model="loginForm" :rules="loginFormRules" ref="loginFormRef" label-width="0px" class="login_form">
                    <el-form-item prop="username">
                        <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
                    </el-form-item>
                    <el-form-item prop="password">
                        <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
                    </el-form-item>
                    <el-form-item class="btns">
                        <el-button type="primary" @click="submitForm('loginFormRef')">登录</el-button>
                        <el-button type="info" @click="resetForm('loginFormRef')">重置</el-button>
                    </el-form-item>
                </el-form>
            </div>
        </div>
    </div>
</template>

<script>
    export default {
         data() {
            return {
                loginForm: {
                    username: 'admin',
                    password: '123456'
                },
                loginFormRules: {
                    username: [
                        { required: true, message: '请输入登录名称', trigger: 'blur' },
                        { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                    ],
                    password: [
                        { required: true, message: '请输入登录密码', trigger: 'blur' },
                        { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                    ]
                }
            };
        },
        methods: {
             submitForm(formName) {
                this.$refs[formName].validate(async valid => {
                    if (valid) {
                        const { data: result } = await this.$http.post('login', this.loginForm);
                        if(result.meta.status != 200){
                            return this.$message.error('登陆失败');
                        }else{
                            this.$message.success('登陆成功');
                             window.sessionStorage.setItem("token", result.data.token);
                            this.$router.push('/home')
                        }
                    } else {
                        console.log('error submit!!');
                        return false;
                    }
                });
            },
            resetForm(formName) {
                this.$refs[formName].resetFields();
            }
        }
    };
</script>

<style lang="less" scoped>
.login_container {
    background-color: #2b4b6b;
    height: 100%;
}
.login_box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);

    .avatar_box {
        height: 130px;
        width: 130px;
        border: 1px solid #eee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left: 50%;
        transform: translate(-50%,-50%);
        background-color: #fff;
        img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
    }
}
.login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
.btns {
    display: flex;
    justify-content: flex-end;
}
</style>